North-South Choke: A White Belt's Biomechanical Guide

1. Starting from the north-south position, secure a standard cross-collar grip with your right hand (palm facing away from you) on their left lapel. Your left hand grips the same lapel, palm facing your own body.
2. Position your chest directly over your opponent's sternum, creating a heavy base.
3. Drive your left shoulder into their left shoulder, preventing them from turning.
4. Align your hips so they are perpendicular to your opponent's body, driving your hips forward towards their head.
5. Squeeze your elbows together, pulling your hands towards your chest to cinch the choke.
6. Extend your hips forward and arch your back slightly, increasing the pressure on the carotid artery.
7. Maintain head control by tucking your chin and pressing your forehead into their head.

• Incorrectly driving your weight down onto the opponent's neck: This can cause direct pressure on the trachea, leading to a painful throat strike and potential laryngeal injury. Always aim for the carotid arteries on the sides of the neck.
• Allowing the opponent to turn into you: If you don't secure the shoulder-to-shoulder pressure, they can bridge or shrimp, potentially hyperextending your neck or shoulder. Maintain strong shoulder-to-shoulder control and keep your base wide.
• Gripping too loosely or with fingers only: This provides insufficient pressure and can lead to your grip slipping. Use a deep, firm grip with your thumb wrapped around the lapel and your knuckles driving into the artery.

1. Solo drilling (0%): Practice the grip sequence and body positioning without an opponent. Focus on achieving the correct angles and weight distribution. (10 reps)
2. Partner drilling with no resistance (25%): With a compliant partner, execute the choke, focusing on the precise grip placement and hip drive. (10 reps)
3. Partner drilling with light resistance (50%): Your partner offers minimal resistance, allowing you to feel the pressure and make adjustments. (10 reps)
4. Partner drilling with moderate resistance (75%): Your partner actively tries to defend, forcing you to maintain your control and refine your technique. (5 reps)
5. Live rolling, focusing on the setup (90%): In rolling, actively seek the north-south position and attempt to set up the choke, even if you don't finish. (2 minute rounds)
6. Live rolling, aiming for the submission (100%): In live rolling, commit to finishing the North-South Choke when the opportunity arises, applying all learned mechanics. (3 minute rounds)

• WHEN TO ATTEMPT:
• When you have successfully passed to the north-south position after a guard pass.
• When your opponent turtles defensively from a scramble or transition.
• When you are in side control and can transition to north-south by walking your hips forward.
• PRIMARY COUNTERS:
• Hip Escape and Turn In: If the attacker's shoulder pressure is weak, the defender can aggressively hip escape towards the attacker's head and turn their body to face them, breaking the choke grip. The attacker must counter by driving hips forward and maintaining shoulder-to-shoulder pressure.
• Shrimp and Reguard: The defender can shrimp their hips away and attempt to bring their knees inside the attacker's thighs, creating space to get back to a guard position. The attacker should prevent this by keeping their chest heavy and hips forward.
• Bridge and Roll: A powerful counter involves the defender bridging their hips upwards and attempting to roll the attacker over, disrupting their base and choke attempt. The attacker needs a solid base and to avoid getting swept.

Watch step-by-step breakdowns from black belt instructors: